java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/floats-cdfpl/newton_2_4.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:29:09,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:29:09,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:29:09,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:29:09,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:29:09,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:29:09,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:29:09,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:29:09,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:29:09,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:29:09,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:29:09,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:29:09,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:29:09,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:29:09,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:29:09,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:29:09,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:29:09,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:29:09,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:29:09,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:29:09,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:29:09,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:29:09,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:29:09,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:29:09,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:29:09,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:29:09,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:29:09,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:29:09,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:29:09,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:29:09,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:29:09,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:29:09,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:29:09,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:29:09,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:29:09,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:29:09,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:29:09,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:29:09,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:29:09,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:29:09,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:29:09,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:29:10,012 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:29:10,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:29:10,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:29:10,013 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:29:10,013 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:29:10,014 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:29:10,014 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:29:10,014 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:29:10,014 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:29:10,014 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:29:10,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:29:10,015 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:29:10,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:29:10,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:29:10,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:29:10,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:29:10,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:29:10,017 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:29:10,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:29:10,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:29:10,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:29:10,017 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:29:10,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:29:10,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:29:10,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:29:10,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:29:10,018 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:29:10,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:29:10,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:29:10,019 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:29:10,063 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:29:10,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:29:10,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:29:10,081 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:29:10,082 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:29:10,082 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_2_4.i [2019-09-10 01:29:10,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90c37016c/c125f1e4f1c24a1ea394b05074219300/FLAGcb00c9593 [2019-09-10 01:29:10,659 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:29:10,659 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_2_4.i [2019-09-10 01:29:10,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90c37016c/c125f1e4f1c24a1ea394b05074219300/FLAGcb00c9593 [2019-09-10 01:29:11,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90c37016c/c125f1e4f1c24a1ea394b05074219300 [2019-09-10 01:29:11,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:29:11,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:29:11,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:29:11,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:29:11,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:29:11,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:29:11" (1/1) ... [2019-09-10 01:29:11,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@543a0ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11, skipping insertion in model container [2019-09-10 01:29:11,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:29:11" (1/1) ... [2019-09-10 01:29:11,116 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:29:11,134 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:29:11,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:29:11,354 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:29:11,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:29:11,509 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:29:11,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11 WrapperNode [2019-09-10 01:29:11,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:29:11,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:29:11,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:29:11,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:29:11,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11" (1/1) ... [2019-09-10 01:29:11,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11" (1/1) ... [2019-09-10 01:29:11,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11" (1/1) ... [2019-09-10 01:29:11,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11" (1/1) ... [2019-09-10 01:29:11,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11" (1/1) ... [2019-09-10 01:29:11,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11" (1/1) ... [2019-09-10 01:29:11,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11" (1/1) ... [2019-09-10 01:29:11,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:29:11,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:29:11,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:29:11,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:29:11,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:29:11,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:29:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:29:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-10 01:29:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2019-09-10 01:29:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:29:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:29:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:29:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-10 01:29:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-10 01:29:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2019-09-10 01:29:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:29:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:29:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:29:11,819 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:29:11,820 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 01:29:11,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:29:11 BoogieIcfgContainer [2019-09-10 01:29:11,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:29:11,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:29:11,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:29:11,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:29:11,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:29:11" (1/3) ... [2019-09-10 01:29:11,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35908a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:29:11, skipping insertion in model container [2019-09-10 01:29:11,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:11" (2/3) ... [2019-09-10 01:29:11,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35908a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:29:11, skipping insertion in model container [2019-09-10 01:29:11,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:29:11" (3/3) ... [2019-09-10 01:29:11,846 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_4.i [2019-09-10 01:29:11,880 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:29:11,899 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:29:11,926 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:29:11,969 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:29:11,970 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:29:11,970 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:29:11,970 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:29:11,971 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:29:11,971 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:29:11,972 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:29:11,972 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:29:11,987 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-09-10 01:29:11,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-10 01:29:11,997 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:29:11,998 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:29:12,001 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:29:12,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:29:12,007 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2019-09-10 01:29:12,009 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:29:12,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:29:12,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:29:12,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:29:12,051 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:29:12,087 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:29:12,087 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:29:12,088 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:29:12,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:29:12,103 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:29:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-09-10 01:29:14,374 INFO L285 seRefinementStrategy]: Strategy TaipanRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-09-10 01:29:14,375 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:29:14,393 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-09-10 01:29:14,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:29:14 BoogieIcfgContainer [2019-09-10 01:29:14,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:29:14,397 INFO L168 Benchmark]: Toolchain (without parser) took 3296.36 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 93.0 MB in the beginning and 148.3 MB in the end (delta: -55.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:14,398 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 111.5 MB in the beginning and 111.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:29:14,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.30 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 92.8 MB in the beginning and 177.5 MB in the end (delta: -84.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:14,401 INFO L168 Benchmark]: Boogie Preprocessor took 48.72 ms. Allocated memory is still 199.8 MB. Free memory was 177.5 MB in the beginning and 175.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:14,402 INFO L168 Benchmark]: RCFGBuilder took 262.80 ms. Allocated memory is still 199.8 MB. Free memory was 175.5 MB in the beginning and 164.2 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:14,403 INFO L168 Benchmark]: TraceAbstraction took 2569.61 ms. Allocated memory is still 199.8 MB. Free memory was 163.7 MB in the beginning and 148.3 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:14,409 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 111.5 MB in the beginning and 111.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 410.30 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 92.8 MB in the beginning and 177.5 MB in the end (delta: -84.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.72 ms. Allocated memory is still 199.8 MB. Free memory was 177.5 MB in the beginning and 175.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 262.80 ms. Allocated memory is still 199.8 MB. Free memory was 175.5 MB in the beginning and 164.2 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2569.61 ms. Allocated memory is still 199.8 MB. Free memory was 163.7 MB in the beginning and 148.3 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L19] RET, EXPR f(IN) [L19] CALL, EXPR fp(IN) [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] RET, EXPR fp(IN) [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L21] RET, EXPR f(x) [L21] CALL, EXPR fp(x) [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L21] RET, EXPR fp(x) [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNKNOWN Result, 2.4s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...